Showing posts from category food security.
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A Dialogue on Managing the Planet
›“Collectively, the impact of humanity on the way the planet works is enormous and headed in disturbing directions,” said George Mason University professor Thomas Lovejoy in January at the first in a monthly series, “Managing the Planet,” led jointly by George Mason University and the Woodrow Wilson Center. The series will focus on how to take “environmental management to the scale of the entire planet,” as climate change, increasing energy consumption, and population growth place increasing stress on natural resources. We need to “chart a better course for the human future,” said Lovejoy.
Joining Lovejoy at the kickoff meeting were Dennis Dimick, executive environment editor at National Geographic, and Professor Molly Jahn of the University of Wisconsin-Madison. [Video Below]
Signs From Earth
“The entire human enterprise is based on the assumption of a stable climate,” said Lovejoy. The “most dramatic part of the story” in recent decades has been the melting of ice in the Arctic and in the mountain ranges of tropical zones. At current rates, tropical glaciers will completely disappear within the next 15 years. Though scientists predicted it would last until at least 2015, Bolivia’s Chacaltaya glacier – once renowned as the world’s highest elevation ski area – was reduced to a “few lumps of ice” in 2009, according to the BBC.
Glacial melt has raised water temperatures, altered species migrations, and threatened water supplies, coastal ecosystems, and the communities that depend on them, said Lovejoy. Higher ocean temperatures also cause the “fundamental partnership” between coral reefs and algae to break down, and “the Technicolor world essentially goes black and white,” he said.
Ocean acidification, fresh water shortages, melting glaciers, pollution, forest fires, and a “vast whipsaw” of temperature and weather extremes are just some of the effects human consumption has had on the planet, said Dimick. “It’s a sign from the Earth. It is telling us, ‘not all is well.’”
Finding Balance
As the world’s population nears seven billion this year, “we have one planet, yet we live like we live on four,” said Dimick. National Geographic’s new series “Population 7 Billion” seeks to answer the questions, he said, of “how do we find balance? How do we find ways to lower the intensity of our demands on an Earth that is telling us it is strained?”
Finding solutions to these challenges will require us to “look forward and confront the future,” said Dimick. “We need to rethink our whole global energy system,” he said, and “rethink our basic premise about what we need, as opposed to what we want.”
The global emissions limit of 450 parts per million (ppm) of carbon – the level needed to achieve the two-degree warming limit agreed upon at Cancun and Copenhagen – “is probably too high,” said Lovejoy. Most scientists agree that 350 ppm is a safer level; however, the world is already at “390 and climbing,” he noted, and global temperatures are projected to rise two degrees Celsius by 2035. If we want global warming to stop at two degrees, carbon emissions will need to stop growing by 2016, he said.
Figuring Out “Plan B”
“We have a problem that is presenting itself in a whole host of ways, with urgency that cannot be denied or dismissed,” said Jahn. “The way we do agriculture is a very significant contributor” to that problem, she said. Today, in the United States, “we waste 40 percent of the food we grow,” she said.
“Plan A…was about maximizing productivity at all costs,” said Jahn. “It looks like we may need another plan.” But figuring out “Plan B” will require steps by both policy and science communities. “We still have enormous gaps in our understanding towards even the basic science platform upon which these very important decisions about ways forward lie,” she said.
Managing the planet must begin with managing data so that we can “transition between data, information, and knowledge, and march this information out to…those making decisions that matter,” said Jahn. The information management structure that developed in the medical sciences and led to the creation of the National Library of Medicine is a useful model for managing the planet, she argued. “Personalized medicine” for the planet would allow people to use data to make better decisions about who should be doing what and where.
Using and expanding the knowledge base is a crucial step towards bringing together the science and policy communities on an international scale in search of solutions to managing the planet. “If we work together, we can change the world,” said Dimick.
Sources: 350 Science, BBC, Earth System Research Laboratory, United Nations Environment Program, United Nations Framework Convention on Climate Change.
Photo Credit: “Sun Over Earth (NASA, International Space Station, 07/21/03),” courtesy of flickr user NASA’s Marshall Space Flight Center. -
Food Price Shocks and Instability Highlight Weaknesses in Governance and Markets
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Unrest across the Middle East has been front-page news for weeks, with commentators searching for explanations to account for the shifting political winds. Many, such as Thomas Friedman and Kevin Hall, have drawn connections between food prices and instability. But, as they point out, high food prices do not deterministically lead to unrest. Instead, rising prices highlight the degree to which governments and governance processes provide and ensure sustainable livelihoods for their people. What these and other commentators point to is that recognizing the role of government in providing food and security is vital: high food prices, they argue, don’t directly cause unrest, but high food prices in poorly managed countries creates a dangerous environment in which unrest may be more likely.
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Edward Carr, University of South Carolina
Why the Poorest Aren’t Necessarily the Most Vulnerable to Food Price Shocks
›February 8, 2011 // By Wilson Center StaffThere have been an interesting series of blog posts going around about the issue of price speculation in food markets, and the impact of that speculation on food security and people’s welfare. Going back through some of these exchanges, it seems to me that a number of folks are arguing past one another.
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Elizabeth Malone on Climate Change and Glacial Melt in High Asia
›“There’s nothing more iconic, I think, about the climate change issue than glaciers,” says Elizabeth Malone, senior research scientist at the Joint Global Change Research Institute and Pacific Northwest National Laboratory. Malone served as the technical lead on “Changing Glaciers and Hydrology in Asia: Addressing Vulnerability to Glacier Melt Impacts,” a USAID report released in late 2010 that explores the linkages between climate change, demographic change, and glacier melt in the Himalayas and other nearby mountain systems.
Describing glaciers as “transboundary in the largest sense,” Malone points out that meltwater from High Asian glaciers feeds many of the region’s largest rivers, including the Indus, Ganges, Tsangpo-Brahmaputra, and Mekong. While glacial melt does not necessarily constitute a large percentage of those rivers’ downstream flow volume, concern persists that continued rapid glacial melt induced by climate change could eventually impact water availability and food security in densely populated areas of South and East Asia.
Rapid demographic change has potentially factored into accelerated glacial melt, even though the connection may not be a direct one, Malone adds.
Atmospheric pollution generated by growing populations contributes to global warming, while black carbon emissions from cooking and home heating can eventually settle on glacial ice fields, accelerating melt rates. Given such cause-and-effect relationships, Malone says that rapid population growth and the continued retreat of High Asian glaciers are “two problems that seem distant,” yet “are indeed very related.”
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Watch: Amy Webb Girard on Integrated Development Strategies for Improved Women’s Nutrition
›“When women become pregnant…their nutrient needs shoot through the roof,” said Amy Webb Girard of Emory University’s School of Public Health in this interview with ECSP and the Global Health Initiative. Girard explains that under-nutrition is a major problem for women – especially pregnant women – in resource-poor settings.
“For example, iron requirements almost double during the course of pregnancy, but iron is one of those nutrients that are really difficult to get,” Girard explained. Meat is not readily available in many developing countries and the iron in non-meat foods is not absorbed as completely. As a result, “women by and large are unable to meet those nutrient needs,” she said.
Fortunately, there is “an arsenal of nutritional interventions available,” noted Girard, including micro-nutrient supplements, behavior change strategies, and integrated facility- and community-based delivery methods.
“Additionally I think it’s very important that we also look at food production. This is a key, key thing,” said Girard. “Women who are able to produce their own foods [and] households that can produce their own foods have greater food security.”
“A lot of these agricultural strategies serve double purposes,” Girard said. “They not only increase the available food and the quality of that food, they improve women’s livelihoods, they give them a source of income, they give them – as some studies have shown – greater ability to negotiate within their own households for how money should be spent [and] whether they should access care or not. So they actually empower women in ways beyond nutrition.” -
How Population Growth Is Straining the World’s Most Vital Resource
Turning Up the Water Pressure [Part Two]
›January 19, 2011 // By Russell SticklorThis article by Russell Sticklor appeared originally in the Fall 2010 issue of the Izaak Walton League’s Outdoor America magazine. Read part one here.
As concerns over water resources have grown around the globe, so too have proposed solutions, which range from common sense to absurd. Towing icebergs into the Persian Gulf or floating giant bags of fresh water across oceans to water-scarce countries are among the non-starters. But more moderate versions of those ideas are already being put into practice. These solutions showcase the power of human ingenuity — and reveal just how desperate some nations have become to secure water.
For example, India is doing business with a company out of tiny Sitka, Alaska, laying the framework for a water-export deal that could see huge volumes of water shipped via supertankers from the water-rich state of Alaska to a depot south of Mumbai. Depending on the success of this arrangement, moving bulk water via ship could theoretically become as commonplace as transoceanic oil shipments are today.
There is far greater potential, however, in harnessing the water supply of the world’s oceans. Perhaps more than any other technological breakthrough, desalination offers the best chance to ease our population-driven water crunch, because it can bolster supply. Although current desalination technology is not perfect, Eric Hoke, an associate professor of environmental engineering at the University of California-Los Angeles, told me via email, it is already capable of converting practically any water source into water that is acceptable for use in households, agriculture, or industrial production. Distances between supply and demand would be relatively short, considering that 40 percent of the world’s population — some 2.7 billion people — live within 60 miles of a coastline.
The Lure of Desalination
Although desalination plants are already up and running from Florida to Australia, the jury is still out on the role desalination can play in mitigating the world’s fresh water crisis. Concerns persist over the environmental impact seawater-intake pipes have on marine life and delicate coastal ecosystems. Another question is cost: Desalination plants consume enormous amounts of electricity, which makes them prohibitively expensive in most parts of the world. Desalination technology may not be able to produce water in sufficient scale — or cheaply enough — to accommodate the growing need for agricultural water. “Desalination is more and more effective [in producing] large quantities of water,” notes Laval University Professor Frédéric Lasserre in an interview. “But the capital needed is huge, and the water cost, now about 75 cents per cubic meter, is far too expensive for agriculture.” Although desalination might be “a good solution for cities and industries that can afford such water,” Lasserre predicts it “will never be a solution for agricultural uses.”
Nevertheless, desalination’s promise of easing future water crunches in populous coastal regions gives the technology game-changing potential at the global level. “Desalination technology,” Columbia University’s Upmanu Lall told said in an email, “will improve to the point that [water scarcity] will not be an issue for coastal areas.”
A Glass Half Full
With world population projected to grow by at least 2 billion during the next 40 years, water will likely remain a chief source of global anxiety deep into the 21st century. Because water plays such a fundamental role in everyday life across every society on earth, its shared stewardship may become an absolute necessity.
Take India and Pakistan’s landmark Indus Waters Treaty of 1960, which is still in effect today. The agreement — signed by two countries that otherwise can’t stand each other — shows that when crafted appropriately and with enough patience, international water-sharing pacts can help defuse tensions over water access before those tensions escalate into violence. Similar collaboration on managing shared waters in other areas of the world — a process that can be a bit bumpy at times — has proven successful to date.
Meanwhile, more widespread distribution of reliable family planning tools and services across Latin America, sub-Saharan Africa, and Asia will also be needed if the international community hopes to meaningfully address water scarcity concerns. Better access to healthcare and family planning tools would empower women to take greater control over their reproductive health and potentially elevate living standards in crowded parts of the developing world. Smaller family sizes would help decelerate population growth over time, easing the burden on water and soil resources in many areas. The key is ensuring such efforts have adequate funding. The United States recently pledged $63 billion over the next six years through its Global Health Initiative to help partner countries improve health outcomes through strengthened health systems, with a particular focus on improving the health of women and children.
Putting a dent in the global population growth rate will be important, but it must be accompanied by a sustained push for conservation — nowhere more so than in agriculture. Investing in the repair of a leaky irrigation infrastructure could help save water that might otherwise literally slip through the cracks. Attention to maintaining healthy soil quality — by practicing regular crop rotation, for example — could also help boost the efficiency of irrigation water.
Setting a Fair Price
The most enduring changes to current water-use practices may have to come in the form of pricing. In most parts of the world, including parts of the United States, groundwater removal is conducted with virtually zero oversight, allowing farmers to withdraw water as if sitting atop a bottomless resource. But as groundwater tables approach exhaustion, the equation changes; as Ben Franklin famously pointed out, “when the well’s dry, we know the worth of water.”
The key, then, is to establish the worth of water before this comes to pass. Smart pricing could encourage conservation by making it less economical to grow water-intensive crops, particularly those ill-suited to a particular climate. “Some crops being grown should not be grown . . . once the true cost of water is factored in,” Nirvikar Singh, a University of California-Santa Cruz economics professor who focuses on water issues, told me via email. Pricing would also provide a revenue stream for modernizing irrigation infrastructures and maintaining sewage systems and water treatment centers, further bolstering water efficiency and quality both in the United States and around the globe.
To be sure, implementing a pricing scheme for water resources — which have been essentially free throughout history — will be unpopular in many parts of the world. It’s natural to expect some pushback from the public as water managers and governments take steps to address the 21st century water crunch. But given the resource’s undeniable and universal value on an ever-more crowded planet, few options exist aside from using the power of the purse to push for more efficient water use.
In the end, however, water pricing must be combined with greater public value on water conservation — we must not flush water down our drains before using it to its full potential. Whether that involves improving the water transportation infrastructure, recycling wastewater, taking shorter showers, or turning to less water-intensive plants and crops, steps big and small need to be taken to better conserve and more equitably divide the world’s water to irrigate our farms, grow our economies, and sustain future generations.
Sources: Columbia Water Center, National Geographic, Population Reference Bureau, White House.
Photo Credits: “Juhu Beach Crowded,” courtesy of flickr user la_imagen, and “Irrigation (China),” courtesy of flickr user spavaai. -
How Population Growth Is Straining the World’s Most Vital Resource
Turning Up the Water Pressure [Part One]
›January 18, 2011 // By Russell SticklorThis article by Russell Sticklor appeared originally in the Fall 2010 issue of the Izaak Walton League’s Outdoor America magazine.
For many Americans, India — home to more than 1.1 billion people — seems like a world away. Its staggering population growth in recent years might earn an occasional newspaper headline, but otherwise, the massive demographic shift taking place on our planet is out of sight, out of mind. Yet within 20 years, India is expected to eclipse China as the world’s most populous nation; by mid-century, it may be home to 1.6 billion people.
So what?
In a world that is increasingly connected by the forces of cultural, economic, and environmental globalization, the future of the United States is intertwined with that of India. Much of this shared fate stems from global resource scarcity. New population-driven demands for food and energy production will increase pressure on the world’s power-generating and agricultural capabilities. But for a crowded India, domestic scarcity of one key resource could destabilize the country in the decades to come: clean, fresh water.
Stepping Into a Water-Stressed Future
From Africa’s Nile Basin and the deserts of the Middle East to the arid reaches of northern China, water resources are being burdened as never before in human history. There may be more or less the same amount of water held in the earth’s atmosphere, oceans, surface waters, soils, and ice caps as there was 50 — or even 50 million — years ago, but demand on that finite supply is soaring.
Consider that since 1900, the world population has skyrocketed from one billion to the cusp of seven billion today, with mid-range projections placing the global total at roughly 9.5 billion by mid-century. And it only took 12 years to add the last billion.
Unlike the United States — which is a water-abundant country by global standards — India is growing weaker with each passing year in its ability to withstand drought or other water-related climate shocks. India’s water outlook is cause for alarm not just because of population growth but also because of climate change-induced shifts in the region’s water supply. Depletion of groundwater stocks in the country’s key agricultural breadbaskets has raised water worries even further. Water scarcity is not some abstract threat in India. As Ashok Jaitly, director of the water resources division at New Delhi’s Energy and Resources Institute, told me this past spring, “we are already in a crisis.”
How the country manages its water scarcity challenges over the coming decades will have repercussions on food prices, energy supplies, and security the world over — impacts that will be felt here in the United States. And India is not the only country wrestling with the intertwined challenges of population growth and water scarcity.
Transboundary Tensions
Several of the world’s most strategically important aquifers and river systems cross one or more major international boundaries. Disputes over dwindling surface- and groundwater supplies have remained local and have rarely boiled over into physical conflict thus far. But given the challenges faced by countries like India, small-scale water disputes may move beyond national borders before the end of this century.
Looming global water shortages, warns a recent World Economic Forum report, will “tear into various parts of the global economic system” and “start to emerge as a headline geopolitical issue” in the coming decades.
This has become a national security issue for the United States. Any country that cannot meet population-linked water demands runs the risk of becoming a failed state and potentially providing fertile ground for international terrorist networks. For that reason, the United States is keeping close track of how water relations evolve in countries like Yemen, Syria, Somalia, Pakistan, and Afghanistan. It is also one of the reasons water security is a key goal of U.S. development initiatives overseas. For instance, between 2007 and 2008, the U.S. Agency for International Development (USAID) invested nearly $500 million across more than 70 countries to boost water efficiency, improve water treatment, and promote more sustainable water management.
More Mouths to Feed, Limited Land to Farm
Water is a critical component of industrial processes the world over — from manufacturing and mining to generating energy — and shapes the everyday lives of the people who rely on it for drinking, cooking, and cleaning. But the aspect of modern society most affected by decreasing water availability is food production. According to the United Nations, agriculture accounts for roughly 70 percent of total worldwide water usage.Global population growth translates into tens of millions of new mouths to feed with each passing year, straining the world’s ability to meet basic food needs. Given the finite amount of land on which crops can be productively and reliably grown and the constant pressure on farms to meet the needs of a growing population, the 20th and early 21st centuries have been marked by periodic regional food crises that were often induced by drought, poor stewardship of soil resources, or a combination of the two. As demographic change continues to rapidly unfold throughout much of Asia and sub-Saharan Africa, the ability of farmers and agribusinesses to keep pace with surging food demands will be continually challenged. Food shortages could very well emerge as a staple of 21st century life, particularly in the developing world.
Mirroring the growing burden on farmland will be a growing demand for water resources for agricultural use — and the outlook is not promising. According to a report from the International Water Management Institute in Sri Lanka, “Current estimates indicate that we will not have enough water to feed ourselves in 25 years’ time.”
As one of the world’s largest agricultural producers, the United States will be affected by this food crisis in multiple ways. Decreased food security abroad will increase demand for food products originating from American breadbaskets in California and the Midwest, possibly resulting in more intensive (and less sustainable) use of U.S. farmland. It may also drive up prices at the grocery store. Booming populations in east and south Asia could affect patterns of global food production, particularly if severe droughts spark downturns in food production in key Chinese or Indian agricultural centers. Such an outcome would push those countries to import huge quantities of grain and other food staples to avert widespread hunger — a move that would drive up food prices on the global market, possibly with little advance warning. Running out of arable land in the developing world could produce a similar outcome, Upmanu Lall, director of the Columbia Water Center at Columbia University, said via email.
Changing Tastes of the Developing World
Economic modernization and population growth in the developing world could affect global food production in other ways. In many developing countries, rising living standards are prompting changes in dietary preferences: More people are moving from traditional rice- and wheat-based diets to diets heavier in meat. Accommodating this shift at the global level results in greater demand on “virtual water” — the amount of water required to bring an agricultural or livestock product to market. According to the World Water Council, 264 gallons of water are needed to produce 2.2 pounds of wheat (370 gallons for 2.2 pounds rice), while producing an equivalent amount of beef requires a whopping 3,434 gallons of water.
In that way, the growing appeal of Western-style, meat-intensive diets for the developing world’s emerging middle classes may further strain global water resources. Frédéric Lasserre, a professor at Quebec’s Laval University who specializes in water issues, said in an interview about his book Eaux et Territories, that at the end of the day, it simply takes far more water to produce the food an average Westerner eats than it does to produce the traditional food staples of much of Africa or Asia.
Continue reading part two of “Turning Up the Water Pressure” here.
Sources: Columbia Water Center, ExploringGeopolitics.org, International Water Management Institute (Sri Lanka), Population Reference Bureau, The Energy and Resources Institute (India), United Nations, USAID, World Economic Forum, World Water Council.
Photo Credits: “Ganges By Nightfall,” courtesy of flickr user brianholsclaw, and “Traditional Harvest,” courtesy of flickr user psychogeographer. -
Peter Gleick on Peak Water
›“The purpose of the whole debate about peak water is to help raise awareness about the nature of the world’s water problems and to help drive toward solutions,” says the Pacific Institute’s Peter Gleick. But Gleick asserts that in the same way certain countries have been contending with “peak oil” concerns in recent years, they may soon also have to deal with “peak water” as well.
Unlike oil, water is largely a renewable resource, but countries in Asia, the Middle East, and elsewhere are pumping groundwater faster than aquifers can replenish naturally. Gleick explains “there will be a peak of production in many of those places and eventually the food that we grow with that water or the widgets that we make from the factories that use that water will be nonsustainable and production will have to drop.”
The world’s surface and groundwater resources can be used sustainably even in the face of continued global population growth, says Gleick, but only “if we are careful about the ecological consequences and the efficiency with which we use it.” However, to date, he says, “those issues have not adequately been brought into the discussion about water policy.”
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